(This is an affiliate link for the product on Amazon. So it’s best to try to stay on the conservative side to prevent that from happening in the first place.Ĭlick here for a 30 amp to 50 amp RV plug adapter Obviously if the main power fuse is tripped, you have gone too far. Every RV is a little different, so you will learn where the limits are for your particular rig. It may take a little fiddling around with to determine what can be used and when, but you will eventually get it. In many cases you can still use them, just not all at once. This means that you probably can only safely run one air conditioner at a time.Īnd you may have to limit how many other power hungry devices you use simultaneously. If you now only have less than a third of the usable power going into the RV, adjustments must be made. You may have 2 or more air conditioners, a microwave, a washer/dryer setup, and more. So for an RV that has a 50 amp service, you probably have a lot of power hungry appliances. What a drop in simultaneous usable power. And that means that your total usable power at one time is only 3600 watts. Well, now you only have one leg of 30 amp power times 120 volts. So it is safe to use 30 amps of power going into an RV that has a 50 amp electrical service. If someone tried to run 50 amps through 30 amp wires, that could be a problem! But not the other way around.ģ0 Amps To 50 Amps – What’s The Difference? This is because the wiring used for 50 amps is much larger than what is used for 30 amps. This is because the adapter adjusts the power going into your RV to use only 30 amps.Īnd since 30 amps is lower than 50 amps, nothing will be overloaded. So does this create any problems for your 50 amp RV electrical service? Not at all. A comparison of the 4 prong 50 amp plug and the 3 prong 30 amp plug And the positive wire has been stepped down to using only 30 amps at the pedestal. This is because all electrical services need a neutral and a ground wire. So when you plug your 4 prong 50 amp power cord into a 3 prong 30 amp service, what happens? Well obviously, one leg of power has been taken away. This means that a 50 amp RV electrical service can run devices that total up to 12,000 watts of power simultaneously.Īnd in the real world that means that you can run a lot of devices and appliances without overloading the service.
If we multiply that by 50 amps that each leg can carry, that leaves us with 12,000 watts. So two legs of 120 volts equals 240 volts. In other words, the wattage figure that you get tells you how much power can be consumed at one time safely. And if you multiply the amps by the total volts, you get the total power available to you in watts. And because wires that are rated to carry 50 amps are large, the cord becomes very heavy.Įssentially, you have 2 legs of 50 amp electrical service going into the RV. That makes up all four prongs on the plug. Then there is also a neutral wire and a ground wire. So what does all those prongs do? And why is the cord so heavy?Ī 50 amp RV electrical service comes with 2 wires that are rated to supply 50 amps of power to the RV.
And at the end of that cord you have a 4 prong 50 amp plug. If you have an RV with a 50 amp electrical service it means that you have a thick and heavy electrical cord. A 50 Amp RV Electrical Service – What Does It Mean?
#50 amp to 30 amp rv adapter free#
The income goes toward supporting the free content on this website. I only link to products and companies I use and feel comfortable recommending. This means – at no additional cost to you – I earn a commission if you make a purchase using our affiliate links. And we will explain what happens when you do.ĭisclosure: Please note this post may contain affiliate links. Actually, there is confusion when any adapter is used to adjust the electricity provided to an RV.īut in this article we will discuss whether or not you should use a 30 amp to 50 amp adapter. There is often confusion about what happens when you try to use a 30 amp to 50 amp adapter (sometimes called a “dogbone”) at a campground pedestal.
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